remove single_end from modules test template

closes #3691

Author: mashehu

nf_core/module-template/tests/main.nf.test.j2

@@ -27,7 +27,7 @@ nextflow_process {
                 // TODO nf-core: define inputs of the process here. Example:
                 {% if has_meta %}
                 input[0] = [
-                    [ id:'test', single_end:false ], // meta map
+                    [ id:'test' ], // meta map
                     file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/bam/test.paired_end.sorted.bam', checkIfExists: true),
                 ]
                 {%- else %}
@@ -62,7 +62,7 @@ nextflow_process {
                 // TODO nf-core: define inputs of the process here. Example:
                 {% if has_meta %}
                 input[0] = [
-                    [ id:'test', single_end:false ], // meta map
+                    [ id:'test' ], // meta map
                     file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/bam/test.paired_end.sorted.bam', checkIfExists: true),
                 ]
                 {%- else %}